Whisk soup and milk in 2 quart bowl. Add remaining ingredients; mix. Cover and refrigerate at least 12 hours or overnight. Cover with lid or vented plastic wrap. Microwave on high power for 15-17 minutes or until bubbly.
By Robin from Washington, IA
Cook macaroni until done. Stir in tuna and soup until fully blended. Sprinkle corn flakes over top and bake for 30 minutes at 350 degrees F.
Moist, crispy top and tons of flavor! >Preheat oven to 350 degrees F. Prepare macaroni and cheese dinner as directed then stir in all but the potato chips.